The bar is way out over your toes. You're getting away with it because the load is too light to challenge anything. Put the bar over your mid-foot with your heels about shoulder width and your toes turned out 30-ish degrees. This coincides very reliably with your shins being an inch from the bar. Take your grip using a hook grip or double overhand until you can't hold the weight you're moving. Do not move the bar, do not drop your hips. Without moving the bar;'without dropping your hips, push your shins to the bar and out. Flatten your back using hard, willful, uncomfortable, tiring, muscular effort. Squeeze your back into hard, fixed extension - point your nerples at the wall. Take a deep breath and hold, and drag the bar up your shins - physically touching your legs.